Fluorescent light power 36 watt energy consumption 36 kwh1000h series philips master pl l socket 2g11 light colour neutral white light output 2 900 lumen colour temperature 4 000 k lifespan 15 000 h bulb shape compact fluorescent tube style glass bulb colour rendering index ra 80 ra length 38 mm diameter 417 mm average annual electricity cost 01951 kwh 702 euros source average electricity cost based on figures from eurostat as of 2016